Bookshelf



FIG. 1 is a front perspective view of a bookshelf showing the newdesign;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right elevation view thereof; and,

FIG. 7 is a left elevation view thereof.

The broken lines in the drawings are for the purpose of illustratingportions of the article that form no part of the claimed design.

CLAIM The ornamental design for a bookshelf, as shown and described.